212013022312 has 256 divisors, whose sum is σ = 518308761600. Its totient is φ = 79058903040.

The previous prime is 212013022283. The next prime is 212013022313. The reversal of 212013022312 is 213220310212.

It is a self number, because there is not a number n which added to its sum of digits gives 212013022312.

It is not an unprimeable number, because it can be changed into a prime (212013022313) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 187787764 + ... + 187788892.

It is an arithmetic number, because the mean of its divisors is an integer number (2024643600).

Almost surely, 2^212013022312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212013022312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259154380800).

212013022312 is an abundant number, since it is smaller than the sum of its proper divisors (306295739288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212013022312 is a wasteful number, since it uses less digits than its factorization.

212013022312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212013022312 its reverse (213220310212), we get a palindrome (425233332524).

The spelling of 212013022312 in words is "two hundred twelve billion, thirteen million, twenty-two thousand, three hundred twelve".